http://vinylpro.safeshopper.com/29/cat29.htm?279
Vinyl dye that many wrecker's use to make "the only brown/blue/ beige one in the state". Of course, the part started out grey or some such with a price 1/3 of what he's now asking.
I've used the stuff and it really is close to MB colors when you pick the right one (med grey is perfect, for instance.)